[mirror_ubuntu-artful-kernel.git] / drivers / block / zram / Kconfig

config ZRAM
	tristate "Compressed RAM block device support"
	depends on BLOCK && SYSFS && ZSMALLOC
	select LZO_COMPRESS
	select LZO_DECOMPRESS
	default n
	help
	  Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
	  Pages written to these disks are compressed and stored in memory
	  itself. These disks allow very fast I/O and compression provides
	  good amounts of memory savings.

	  It has several use cases, for example: /tmp storage, use as swap
	  disks and maybe many more.

	  See zram.txt for more information.

config ZRAM_LZ4_COMPRESS
	bool "Enable LZ4 algorithm support"
	depends on ZRAM
	select LZ4_COMPRESS
	select LZ4_DECOMPRESS
	default n
	help
	  This option enables LZ4 compression algorithm support. Compression
	  algorithm can be changed using `comp_algorithm' device attribute.
Commit	Line	Data
16a4bfb9 NG	1	config ZRAM
16a4bfb9 NG	2	tristate "Compressed RAM block device support"
6e236172	3	depends on BLOCK && SYSFS && ZSMALLOC
16a4bfb9 NG	4	select LZO_COMPRESS
	5	select LZO_DECOMPRESS
	6	default n
	7	help
	8	Creates virtual block devices called /dev/zramX (X = 0, 1, ...).
	9	Pages written to these disks are compressed and stored in memory
	10	itself. These disks allow very fast I/O and compression provides
	11	good amounts of memory savings.
	12
	13	It has several use cases, for example: /tmp storage, use as swap
	14	disks and maybe many more.
	15
	16	See zram.txt for more information.
b1f5b81e	17
6e76668e SS	18	config ZRAM_LZ4_COMPRESS
	19	bool "Enable LZ4 algorithm support"
	20	depends on ZRAM
	21	select LZ4_COMPRESS
	22	select LZ4_DECOMPRESS
	23	default n
	24	help
	25	This option enables LZ4 compression algorithm support. Compression
9e65bf68	26	algorithm can be changed using `comp_algorithm' device attribute.